Who owns the FLEXBOOK PLATFORM trademark?

The FLEXBOOK PLATFORM trademark is owned by CK-12 Foundation.

What class is the FLEXBOOK PLATFORM trademark registered in?

The FLEXBOOK PLATFORM trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for FLEXBOOK PLATFORM?

The USPTO serial number for FLEXBOOK PLATFORM is 77781784.

What is the registration number for FLEXBOOK PLATFORM?

FLEXBOOK PLATFORM is registered under USPTO registration number 3757180.

Sealvo

Home Search: FLEXBOOK PLATFORMFLEXBOOK PLATFORM #77781784

Back

Updated Oct 2, 2026·24 searches this week

View on USPTO TSDR Find similar marks

FLE

USPTO Trademark Record

REGISTERED

FLEXBOOK PLATFORM

SN 77781784·Reg 3757180·Filed Jul 15, 2009

Owner CK-12 Foundation

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

FLEXBOOK PLATFORM (Serial No. 77781784), Registration No. 3757180, is a registered US trademark filed on Jul 15, 2009 by CK-12 Foundation. This trademark covers Class 042 (Scientific, technology & SaaS services).

Section 8/9 declaration window: March 11, 2030

Conflict Analysis

Full conflict analysis for FLEXBOOK PLATFORM (SN 77781784) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

FLEXBOOK PLATFORM (Reg. #3757180) is a registered US trademark that has been protecting its owner, CK-12 Foundation, since 2009. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 15, 2009

SERIAL

77781784

REG#

3757180

REGISTERED

Mar 09, 2010

Filing Information

StatusREGISTERED

Filing DateJul 15, 2009

Serial Number77781784

Registration No.3757180

Registration DateMar 09, 2010

Status DateMay 13, 2020

Published for OppositionDec 22, 2009

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Aug 08, 2008

First use in commerce: Aug 08, 2008

This description is as filed with the USPTO and defines the scope of trademark protection.

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

30 events

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

May 13, 2020

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

May 13, 2020

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

May 13, 2020

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

May 12, 2020

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

May 12, 2020

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

May 12, 2020

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

TEAS SECTION 8 & 9 RECEIVED

Mar 05, 2020

TEAS SECTION 8 & 9 RECEIVED

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Mar 09, 2019

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

May 02, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

May 02, 2016

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

May 02, 2016

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

TEAS SECTION 8 & 15 RECEIVED

Mar 01, 2016

TEAS SECTION 8 & 15 RECEIVED

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Mar 04, 2015

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Mar 04, 2015

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

REGISTERED-PRINCIPAL REGISTER

Mar 09, 2010

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Dec 22, 2009

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 22, 2009

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

ASSIGNED TO LIE

Nov 19, 2009

ASSIGNED TO LIE

LAW OFFICE PUBLICATION REVIEW COMPLETED

Nov 19, 2009

LAW OFFICE PUBLICATION REVIEW COMPLETED

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 02, 2009

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 29, 2009

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 29, 2009

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 29, 2009

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Oct 20, 2009

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Oct 20, 2009

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 20, 2009

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Oct 15, 2009

ASSIGNED TO EXAMINER

NOTICE OF PSEUDO MARK MAILED

Jul 21, 2009

NOTICE OF PSEUDO MARK MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jul 20, 2009

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 18, 2009

NEW APPLICATION ENTERED

Other Marks by CK-12 Foundation

Additional USPTO filings from the same owner.

BRA

BRAINGENIE

86088957

CK-12 Foundation

REGISTERED

FLE

FLEXMATH

85960517

CK-12 Foundation

REGISTERED

FLE

FLEXBOOK

87370681

CK-12 Foundation

REGISTERED

FLE

FLEXBOOKS

97363365

CK-12 Foundation

REGISTERED

Other Marks in Class 042 — Scientific, technology & SaaS services

Recently filed and registered marks in the same international class.

PLA

PLATFORM

98375315

The PBT Agency

REGISTERED

SAY

SAYS PLATFORM

88513483

Opturo Inc.

REGISTERED

EXO

EXO PLATFORM

77755113

Exo Platform SAS

REGISTERED

FAS

FAST PLATFORM

99530582

S&S Activewear, LLC

REGISTERED

Other Marks by Han Yu

Additional USPTO filings handled by the same attorney of record.

RYT

RYTMO

90019281

REGISTERED

FLE

FLEXLET

88925058

REGISTERED

FAT

FATHER TO CHILD

77236292

REGISTERED

HOP

HOPE HOUSE

77236226

REGISTERED

FLEXBOOK PLATFORM

Run a conflict check

Other Marks by CK-12 Foundation

Other Marks in Class 042 — Scientific, technology & SaaS services

Other Marks by Han Yu

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company